Steca Solsum

2525, 4040

  • Easy to use charge controller
  • LED display
  • Automatic battery voltage detection
  • Full load protection
  • Low self consumption
Steca Solsum picture 3D.jpg
Steca Solsum picture.jpg
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Steca Solsum picture 3D.jpg
Steca Solsum picture.jpg

Description

Solar charge controllers Steca Solsum 2525 and 4040 are newly developed products based on our internationally renowned controller family Solarix PRS. With increased module and load current, the controllers are now also suitable for even larger systems. The devices also feature an integrated USB charging port for charging smartphones and tablets. the controllers demonstrate impressive performance, are simple to use and offer unbeatable value for money.

Several LEDs in various colours give information on the battery‘s state of charge. Here, Steca’s latest algorithms are employed, resulting in optimal battery maintenance. The Steca Solsum charge controllers are equipped with an electronic fuse, thus making optimal protection possible. they operate on the serial principle, and separate the solar module from the battery in order to protect it against overcharging.

For larger projects, the charge controllers can also be equipped with special functions: e.g. with night light function and selectable charging plateau and deep-discharge protection voltages.

Features

Technical drawing: Steca Solsum 2525, 4040

Product features

  • Serial topology with MOSFETs
  • Automatic detection of voltage
  • Voltage regulation
  • PWM control
  • Multistage charging technology
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • Negative earthing of one or positive earthing of several terminals possible
  • Monthly equalisation charge
  • USB charge socket for smartphones and tablets

Electronic protection functions

  • Overcharge protection
  • Deep discharge protection
  • Reverse polarity protection of module (≤36 V),load and battery
  • Automatic electronic fuse
  • Short circuit protection of load and module
  • Overvoltage protection at module input
  • Open circuit protection without battery
  • Reverse current protection at night
  • Overtemperature and overload protection
  • Load disconnection on battery overvoltage

Displays

  • Multifunction LED display
  • Multi-coloured LED
  • 4 LEDs show operating states
  • for operation, state of charge, fault messages

Options

  • Evening or night light function pre-set in the factory or adjustable via Steca PA RC 100
  • Parameterisation of function values via Steca PA RC 100

Certificates

  • Compliant with European Standards (CE)
  • RoHS compliant
  • Made in EU
  • Manufactured according to ISO 9001 and ISO 14001

Accessories

  • Steca PA RC100

Downloads

Certificates

  •  Steca Solsum certificate CE_Zertifikat · pdf · 0.845 MB

Product data sheet

  •  Steca Solsum productdatasheet DE · pdf · 0,279 MB
  •  Steca Solsum productdatasheet EN · pdf · 0.279 MB
  •  Steca Solsum productdatasheet FR · pdf · 0,284 MB

Manuals

  •  Steca Solsum manual DE · pdf · 0.407 MB
  •  Steca Solsum manual EN · pdf · 0.402 MB
  •  Steca Solsum manual ES · pdf · 0.404 MB
  •  Steca Solsum manual FR · pdf · 0.405 MB
  •  Steca Solsum manual IT · pdf · 0.403 MB

Product pics, technical drawings, etc.

  •  Steca Solsum product pic 3D · jpg, 300 DPI, high quality · 1.214 MB
  •  Steca Solsum product pic 3D · jpg, 72 DPI, web quality · 0.377 MB
  •  Steca Solsum product pic drawing · jpg, 300 DPI, high quality · 0.101 MB
  •  Steca Solsum product pic drawing · jpg, 72 DPI, web quality · 0.101 MB

Technical data

 25254040
Characterisation of the operating performance
System voltage
12 V (24 V)
Own consumption
< 10,5 mA
DC input side
Open circuit voltage solar module (at minimum operating temperature)
< 47 V
Module current
25 A
40 A
DC output side
Load current
25 A
40 A
USB charge socket
5.2 V / 1.5 A
Reconnection voltage (LVR)
12.4 V … 12.7 V (24.8 V … 25.4 V)
Deep discharge protection (LVD)
11.2 V … 11.6 V (22.4 V … 23.2 V)
Battery side
Battery voltage
9 V … 17 V (17.1 V … 34 V)
End-of-charge voltage
13.9 V (27.8 V)
Boost charge voltage
14.4 V (28.8 V)
Equalisation charge
14.7 V (29.4 V)
Set battery type
liquid
Operating conditions
Ambient temperature
-25 °C … +50 °C
Fitting and construction
Terminal (fine / single wire)
16 mm² / 25 mm² - AWG 6 / 4
Degree of protection
IP 30
Dimensions (X x Y x Z)
187 x 97 x 45 mm
Weight
345 g
 
  • Technical data at 25 °C / 77 °F
  • adjustable via Steca PA RC100: reconnection voltage, deep discharge protection, end of charge voltage, boost charge voltage, equalisation charge, battery type
  • Inverters must not be connected to the load output.
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